AD9857SLASHPCB datasheet(6/40 Pages) AD

Part #	AD9857/PCB

Description	CMOS 200 MSPS 14-Bit Quadrature Digital Upconverter

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Manufacturer	AD [Analog Devices]

Direct Link	http://www.analog.com

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AD9857

Rev. C | Page 6 of 40

Parameter

Temp

Test Level

Min

Typ

Max

Unit

MODULATOR CHARACTERISTICS (65 MHz AOUT)

(Input data: 2.5 MS/s, QPSK, 4× oversampled, inverse SINC

filter ON, inverse CIC ON)

I/Q Offset

25°C

IV

55

65

dB

Error Vector Magnitude

25°C

IV

0.4

1

%

INVERSE SINC FILTER (variation in gain from DC to 80 MHz,

inverse SINC filter ON)

25°C

V

±0.1

dB

SPURIOUS POWER (off channel, measured in equivalent

bandwidth), Full-Scale Output

6.4 MHz Bandwidth

25°C

IV

−65

dBc

3.2 MHz Bandwidth

25°C

IV

−67

dBc

1.6 MHz Bandwidth

25°C

IV

−69

dBc

0.8 MHz Bandwidth

25°C

IV

−69

dBc

0.4 MHz Bandwidth

25°C

IV

−70

dBc

0.2 MHz Bandwidth

25°C

IV

−72

dBc

SPURIOUS POWER (Off channel, measured in equivalent

bandwidth), Output Attenuated 18 dB

Relative to Full Scale

6.4 MHz Bandwidth

25°C

IV

−51

dBc

3.2 MHz Bandwidth

25°C

IV

−54

dBc

1.6 MHz Bandwidth

25°C

IV

−56

dBc

0.8 MHz Bandwidth

25°C

IV

−59

dBc

0.4 MHz Bandwidth

25°C

IV

−62

dBc

0.2 MHz Bandwidth

25°C

IV

−63

dBc

TIMING CHARACTERISTICS

Serial Control Bus

Maximum Frequency

25°C

I

10

MHz

Minimum Clock Pulse Width Low (tPWL)

25°C

I

30

ns

Minimum Clock Pulse Width High (tPWH)

25°C

I

30

ns

Maximum Clock Rise/Fall Time

25°C

I

1

ms

Minimum Data Setup Time (tDS)

25°C

I

30

ns

Minimum Data Hold Time (tDH)

25°C

I

0

ns

Maximum Data Valid Time (tDV)

25°C

I

35

ns

Wake-Up Time1

25°C

I

1

ms

Minimum RESET Pulse Width High (tRH)

25°C

I

5

SYSCLK22Cycles

Minimum CS Setup Time

25°C

I

40

ns

CMOS LOGIC INPUTS

Logic 1 Voltage

25°C

IV

2.0

V

Logic 0 Voltage

25°C

IV

0.8

V

Logic 1 Current

25°C

I

5

µA

Logic 0 Current

25°C

I

5

µA

Input Capacitance

25°C

V

3

pF

CMOS LOGIC OUTPUTS (1 mA LOAD)

Logic 1 Voltage

25°C

I

2.7

V

Logic 0 Voltage

25°C

I

0.4

V

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